Kitchen appliance energy cost calculator
Add up what your kitchen appliances actually cost to run â and find out whether you are near your circuit limit.
⥠Your appliances
per kWh â check your bill
amps â usually 16 A or 20 A at home
0 per year
Why wattage alone does not tell you the cost
Two appliances with the same wattage can cost very different amounts to run, because what matters is wattage à time. An air fryer at 1,500 W for 20 minutes uses less energy than a slow cooker at 200 W for 8 hours.
That is why this calculator asks for minutes per use and uses per week, not just the wattage on the box.
The circuit limit most people ignore
Most home kitchen circuits are rated 16 A or 20 A. At 220â240 V that is roughly 3,500â4,800 W total.
Run an air fryer (1,500 W), an electric kettle (2,000 W) and a microwave (1,000 W) at the same moment and you are at 4,500 W â enough to trip a 16 A breaker. This is not a fault; it is the breaker doing its job.
Practical fix: stagger high-draw appliances by a few minutes rather than upgrading the breaker.
Upgrading the breaker without upgrading the wiring is genuinely dangerous.
Estimated wattage reference
| Appliance | Typical draw | Typical session |
|---|---|---|
| Air fryer | 1,200â1,800 W | 15â25 min |
| Electric kettle | 1,500â2,200 W | 3â5 min |
| Microwave | 800â1,200 W | 2â5 min |
| Induction rice cooker | 1,000â1,400 W | 30â45 min |
| Blender | 300â1,000 W | 1â3 min |
| Slow cooker | 150â300 W | 4â8 hours |
| Toaster | 800â1,500 W | 2â4 min |
| Refrigerator | 100â250 W | continuous (duty cycle ~30%) |
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